Pump.



I. E. SMITH.

PUMP.

APPLICATION FILED SEPT.20, 1907.

Patented Jan. 19, 1909.

I ll naw/M07 [Pa SrniI/z.

IRA E. SMITH, OF STOCKTON, CALIFORNIA.

PUMP.

Specification of Letters Patent.

Patented Jan. 19, 1909.

Application filed. September 20, 1907. Serial No. 393,756.

To all whom it may concern:

Be it known that I, IRA E. SMITH, a citizen of the United States, residing at Stockton, in the county of San Joaquin and State of California, have invented certain new and useful Improvements in Pumps; and I do declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it appertains to make and use the same, ref erence being had to the accompanying drawings, and the characters of reference marked thereon, which form a part of this application.

This invention relates to improvements in pumping machinery and particularly to that class used in pumping oil from wells, my object being to produce such a device as will easily and efiectively pump the oil from oil wells and deliver the same to the top of the casing of the well in a rapid and clean manner and in such quantities as to greatly increase the output over the present system in which only the natural flow of the wells is produced. This object I accomplish by means of a main rod provided with a plurality of stirring or agitating pins at its lower end and a plurality of valve members disposed above said pins; said pins and valves being constructed and operated as will appear by a perusal of the following specification and claims.

In the drawings similar characters of reference indicate corresponding parts in the several views.

Figure 1 is a vertical section of the casing of a well showing my improved pumping means therem. Fig. 2 is a s1de elevation of a valve in normal position. Fig. 3 is an end elevation of the valve in normal position. Fig. 4 is a sectional view taken on a line at w of Fig. 2. Fig. 5 is a side elevation of a valve in open position.

Referring more particularly to the characters of reference on the drawings 1 designates the inner casing of an oil well at the bottom of which is disposed a foot valve 2.

3 designates the main driving pump rod which is suitably connected at its upper end to the walking beam of the well machinery or to any other suitable driving power. At the bottom of said rod 3 are disposed a plurality of pins 5 arranged in alternate order and spaced apart one above the other as shown, each pin 4 being provided with cotter pins 5 on each side of the rod 3. Disposed on the rod 3 above the pins 4 are a plurality of valve members arranged and constructed as follows: 6 designates pins disposed in alternate order through the rod 3 one end of which pins are provided with threaded portions 7 Swung on the pins (5 are arms or hangers 8, 9, 10, and 11, the arms or hangers 8 bein threaded to receive the threaded portions Formed as a part of the hangers 9 and 11 are semicircular disks 12 and as a part of the hangers 8 and are formed semi-circular disks 13, the disks 12 and 13 together forming a complete circumvention of the rod 3, and having crescent shaped depressions 14. and 15 respectively following their interior peripheries for the purpose as will appear. Said members 8, 9, 10, and 11 are provided with reinforcing members 16, 17 18 and 19 and the members 12 and 13 are provided with bottom reinforcing members 20 and 21. Normally the valve disks 12 and 13 lie transversely to the rod 3 as shown in Fig. 1.

In most oil wells the great difficulty encountered is the oil sand which fills into the casing and stops the flow of the well and to overcome this two casings are now used, one within the other and one being movable for the purpose of keeping the sand stirred up. It is in this inner casing that my device is installed the casing 1 corresponding to such inner casing. In using my device the pins 4 churn or stir up the oil and sand and the valve members 12 and 13 lift it to the top of the well. Then with the downward stroke of the rod 3, the members 12 and 13 are forced upward against the sides of the rod 3 as shown in Fig. 5 thus permitting them to pass easily down through the oil again ready for another lift. The valve 2 opens with the upward draw of the rod and valves and closes with the downward drive thus retaining the oil within the casing 1. In wells having a good gas pressure, I will dispense with the valve 2 and rely on the pressure of the gas to keep the oil in the casing 1. The depressions la and 15 permit the members 12 and 13 to lie very close to the sides of the member 1 when driving downward as described.

Thus it will be seen that .I have produced a pumping means whereby the oil may be pumped from wells without the difficulties with the oil sand that are now encountered.

Also the'valve mechanism herein described could be used to good advantage in water or other wells.

While this specification sets forth in de tail the present and preferred construction of the device, still in practice such deviations may be resorted to as will not form a departure from the spirit of the invention.

Having thus described my invention what I claim as new and useful and desire to secure by Letters Patent is:

1. In a device of the character described, a casing, a rod disposed therein, a plurality of 'pins disposed through said rod, said pins being screw threaded at one .end, hangers swung on said pins, one of said hangers being threaded for the reception of said threaded ends, and semi-circular disks formed at the bottoms of said hangers and surrounding said rod, as set forth.

2. In a device of the character described, a casing, a rod disposed therein, a pin disposed through said rod, a threaded portion at one end of said pin, hangers swung on said pin, one of said hangers being threaded to receive said threaded portion, semi-circular disks formed on the bottoms of said hangers, said disks being formed With crescent shaped de pressions following the interior periphery of said disks, as set forth.

3. In a device of the character described, a casing, a rod disposed therein, an agitating means on said rod, a plurality of pins disposed in said rod above said agitating means, said pins being threaded at one end, hangers swung onsaid pins, one of said hangers V being threaded for the reception of said threaded ends, as set forth.

In testimony whereof I afliX my signature in presence of two witnesses.

IRA E. SMITH.

Witnesses:

PERCY S. l VEBsrER, FRANK H. CARTER. 

